21701780

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{23087}}^1$

素因数の和:23143

約数の個数: 24

約数和(自身を含む): 46545408

約数和(自身を除く): 24843628

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 23087, 46174, 92348, 115435, 230870, 461740, 1085089, 2170178, 4340356, 5425445, 10850890, 21701780]

約数ペア:

[(1, 21701780), (2, 10850890), (4, 5425445), (5, 4340356), (10, 2170178), (20, 1085089), (47, 461740), (94, 230870), (188, 115435), (235, 92348), (470, 46174), (940, 23087)]